foul-magics/Mage/src/main/java/mage/watchers/Watcher.java

219 lines
9.8 KiB
Java

package mage.watchers;
import mage.cards.Cards;
import mage.constants.WatcherScope;
import mage.game.Game;
import mage.game.events.GameEvent;
import mage.players.PlayerList;
import mage.util.Copyable;
import org.apache.log4j.Logger;
import java.io.Serializable;
import java.lang.reflect.*;
import java.util.*;
/**
* watches for certain game events to occur and flags condition
*
* @author BetaSteward_at_googlemail.com
*/
public abstract class Watcher implements Serializable {
private static final Logger logger = Logger.getLogger(Watcher.class);
protected UUID controllerId;
protected UUID sourceId;
protected boolean condition;
protected final WatcherScope scope;
public Watcher(WatcherScope scope) {
this.scope = scope;
}
public Watcher(final Watcher watcher) {
this.condition = watcher.condition;
this.controllerId = watcher.controllerId;
this.sourceId = watcher.sourceId;
this.scope = watcher.scope;
}
public UUID getControllerId() {
return controllerId;
}
public void setControllerId(UUID controllerId) {
this.controllerId = controllerId;
}
public UUID getSourceId() {
return sourceId;
}
public void setSourceId(UUID sourceId) {
this.sourceId = sourceId;
}
public String getKey() {
switch (scope) {
case GAME:
return getBasicKey();
case PLAYER:
return controllerId + getBasicKey();
case CARD:
return sourceId + getBasicKey();
default:
return getBasicKey();
}
}
public boolean conditionMet() {
return condition;
}
public void reset() {
condition = false;
}
protected String getBasicKey() {
return getClass().getSimpleName();
}
public abstract void watch(GameEvent event, Game game);
public <T extends Watcher> T copy() {
try {
//use getDeclaredConstructors to allow for package-private constructors (i.e. omit public)
List<?> constructors = Arrays.asList(this.getClass().getDeclaredConstructors());
if (constructors.size() > 1) {
logger.error(getClass().getSimpleName() + " has multiple constructors");
return null;
}
Constructor<? extends Watcher> constructor = (Constructor<? extends Watcher>) constructors.get(0);
// collect all fields
constructor.setAccessible(true);
Object[] args = new Object[constructor.getParameterCount()];
for (int index = 0; index < constructor.getParameterTypes().length; index++) {
Class<?> parameterType = constructor.getParameterTypes()[index];
if (parameterType.isPrimitive()) {
if (parameterType.getSimpleName().equalsIgnoreCase("boolean")) {
args[index] = false;
}
} else {
args[index] = null;
}
}
T watcher = (T) constructor.newInstance(args);
List<Field> allFields = new ArrayList<>();
allFields.addAll(Arrays.asList(getClass().getDeclaredFields()));
allFields.addAll(Arrays.asList(getClass().getSuperclass().getDeclaredFields()));
// copy field's values
for (Field field : allFields) {
if (!Modifier.isStatic(field.getModifiers())) {
field.setAccessible(true);
if (field.getType() == Set.class) {
// Set<UUID, xxx>
((Set) field.get(watcher)).clear();
((Set) field.get(watcher)).addAll((Set) field.get(this));
} else if (field.getType() == Map.class || field.getType() == HashMap.class) {
// Map<UUID, xxx>
ParameterizedType parameterizedType = (ParameterizedType) field.getGenericType();
Type valueType = parameterizedType.getActualTypeArguments()[1];
if (valueType.getTypeName().contains("SortedSet")) {
// Map<UUID, SortedSet<Object>>
Map<Object, Set<Object>> source = (Map<Object, Set<Object>>) field.get(this);
Map<Object, Set<Object>> target = (Map<Object, Set<Object>>) field.get(watcher);
target.clear();
for (Map.Entry<Object, Set<Object>> e : source.entrySet()) {
Set<Object> set = new TreeSet<>();
set.addAll(e.getValue());
target.put(e.getKey(), set);
}
} else if (valueType.getTypeName().contains("Set")) {
// Map<UUID, Set<Object>>
Map<Object, Set<Object>> source = (Map<Object, Set<Object>>) field.get(this);
Map<Object, Set<Object>> target = (Map<Object, Set<Object>>) field.get(watcher);
target.clear();
for (Map.Entry<Object, Set<Object>> e : source.entrySet()) {
Set<Object> set = new HashSet<>();
set.addAll(e.getValue());
target.put(e.getKey(), set);
}
} else if (valueType.getTypeName().contains("PlayerList")) {
// Map<UUID, PlayerList>
Map<Object, PlayerList> source = (Map<Object, PlayerList>) field.get(this);
Map<Object, PlayerList> target = (Map<Object, PlayerList>) field.get(watcher);
target.clear();
for (Map.Entry<Object, PlayerList> e : source.entrySet()) {
PlayerList list = e.getValue().copy();
target.put(e.getKey(), list);
}
} else if (valueType.getTypeName().endsWith("Cards")) {
// Map<UUID, Cards>
Map<Object, Cards> source = (Map<Object, Cards>) field.get(this);
Map<Object, Cards> target = (Map<Object, Cards>) field.get(watcher);
target.clear();
for (Map.Entry<Object, Cards> e : source.entrySet()) {
Cards list = e.getValue().copy();
target.put(e.getKey(), list);
}
} else if (valueType instanceof Class && Arrays.stream(((Class) valueType).getInterfaces()).anyMatch(c -> c.equals(Copyable.class))) {
// Map<UUID, Copyable>
Map<Object, Copyable> source = (Map<Object, Copyable>) field.get(this);
Map<Object, Copyable> target = (Map<Object, Copyable>) field.get(watcher);
target.clear();
for (Map.Entry<Object, Copyable> e : source.entrySet()) {
Copyable object = (Copyable) e.getValue().copy();
target.put(e.getKey(), object);
}
} else if (valueType.getTypeName().contains("List")) {
// Map<UUID, List<Object>>
Map<Object, List<Object>> source = (Map<Object, List<Object>>) field.get(this);
Map<Object, List<Object>> target = (Map<Object, List<Object>>) field.get(watcher);
target.clear();
for (Map.Entry<Object, List<Object>> e : source.entrySet()) {
List<Object> list = new ArrayList<>();
list.addAll(e.getValue());
target.put(e.getKey(), list);
}
} else if (valueType.getTypeName().contains("Map")) {
// Map<UUID, Map<UUID, Object>>
Map<Object, Map<Object, Object>> source = (Map<Object, Map<Object, Object>>) field.get(this);
Map<Object, Map<Object, Object>> target = (Map<Object, Map<Object, Object>>) field.get(watcher);
target.clear();
for (Map.Entry<Object, Map<Object, Object>> e : source.entrySet()) {
Map<Object, Object> map = new HashMap<>();
map.putAll(e.getValue());
target.put(e.getKey(), map);
}
} else {
// Map<UUID, Object>
// TODO: add additional tests to find unsupported watcher data
((Map) field.get(watcher)).putAll((Map) field.get(this));
}
} else if (field.getType() == List.class) {
// List<Object>
((List) field.get(watcher)).clear();
((List) field.get(watcher)).addAll((List) field.get(this));
} else {
// Object
field.set(watcher, field.get(this));
}
}
}
return watcher;
} catch (InstantiationException | IllegalAccessException | InvocationTargetException e) {
logger.error("Can't copy watcher: " + e.getMessage(), e);
}
return null;
}
public WatcherScope getScope() {
return scope;
}
}